libnvdimm, nfit: move flush hint mapping to region-device driver-data

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In preparation for triggering flushes of a DIMM's writes-posted-queue
(WPQ) via the pmem driver move mapping of flush hint addresses to the
region driver.  Since this uses devm_nvdimm_memremap() the flush
addresses will remain mapped while any region to which the dimm belongs
is active.

We need to communicate more information to the nvdimm core to facilitate
this mapping, namely each dimm object now carries an array of flush hint
address resources.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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Dan Williams 2016-06-07 17:00:04 -07:00

parent a8a6d2e04c

commit e5ae3b252c

8 changed files with 119 additions and 18 deletions

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include/linux/libnvdimm.h

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